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freebsdFreeBSD301A01B7-D50E-11E7-AC58-B499BAEBFEAF
HistoryNov 29, 2017 - 12:00 a.m.

cURL -- Multiple vulnerabilities

2017-11-2900:00:00
vuxml.freebsd.org
23

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.037 Low

EPSS

Percentile

91.6%

The cURL project reports:

NTLM buffer overflow via integer overflow
(CVE-2017-8816)libcurl contains a buffer overrun flaw
in the NTLM authentication code.
The internal function Curl_ntlm_core_mk_ntlmv2_hash sums up
the lengths of the user name + password (= SUM) and multiplies
the sum by two (= SIZE) to figure out how large storage to
allocate from the heap.
FTP wildcard out of bounds read (CVE-2017-8817)
libcurl contains a read out of bounds flaw in the FTP wildcard
function.
libcurlโ€™s FTP wildcard matching feature, which is enabled with
the CURLOPT_WILDCARDMATCH option can use a built-in wildcard
function or a user provided one. The built-in wildcard function
has a flaw that makes it not detect the end of the pattern
string if it ends with an open bracket ([) but instead it will
continue reading the heap beyond the end of the URL buffer that
holds the wildcard.
SSL out of buffer access (CVE-2017-8818)
libcurl contains an out boundary access flaw in SSL related code.
When allocating memory for a connection (the internal struct
called connectdata), a certain amount of memory is allocated at
the end of the struct to be used for SSL related structs. Those
structs are used by the particular SSL library libcurl is built
to use. The application can also tell libcurl which specific SSL
library to use if it was built to support more than one.

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchcurl=ย 7.21.0UNKNOWN
FreeBSDanynoarchcurl<ย 7.57.0UNKNOWN
FreeBSDanynoarchlinux-c7-curl=ย 7.21.0UNKNOWN
FreeBSDanynoarchlinux-c7-curl<ย 7.29.0_4UNKNOWN

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.037 Low

EPSS

Percentile

91.6%